budding shutter
The non-woven filter is inlaid into the frame to prevent small flies.
Since there is no unnecessary window or slit, there is no need to worry about flies getting in and out of the flies, or stag clinging the chin.
The holes are about 2mm to protect the non-woven fabric from stagger, and will not clog.
The non-woven fabric can be replaced if it gets dirty, so it is easy to clean.
There is no gaps, so it can hold very small insects such as the first order of the bell bugs.
Moisturizing and breathing, so you can almost eliminate the need for daily spray.
The design is both classy and clean.